My mom's memory issues are advancing. Any suggestions as we make this transition?

Well as you all may know, due to the pandemic and still on unemployment, I'm still here now living with my mom now. I can tell her memory issues keep getting worse. She can't remember something I just said to her and she has to ask me again and that has been making me very upset and that kind of character towards her has not only been keeping me from getting sleep but worsening my acid reflux as well. I keep telling her that if she keeps breaking condo(association) rules by giving stray cats food, that I will place her in a retirement home before I'm fined by the condo board(property is in my name) for her breaking rules here. And she already has 3 frisking cats that she cares for and she wants to give stray cats food??I tell her not to do it anymore and the next day she forgets. I dont want her to be forgetting about her cooking something downstairs (bedrooms are upstairs of her condo) and if she is upstairs she might forget and something might happen. The state of Texas has limited assistance for her because of the covid issue and the cleaning lady that they had for her left. So I'm doing all the cleaning and some cooking. I know...you guys told me that she needs to be in a care facility. When I tell her of my placing her in a caring facility she begins to cry so I give her another chance for her not to be breaking condo rules here...but she does it again.yes she was diagnosed with alzheimers in 2017. Was reading what these alternative medicine people say-that some neurologists get these diagnoses wrong at times. She isn't real bad..but I can see the advance in her short term memory loss; Can't retain anything. This scares me-that soon I'll be needing to really place her in a caring facility with limited funds and the I would and now am totally responsible for the little property she has, well its all in my name now. Just nervous about making the transition in placing my mom in a facility and all. I need some guidance and I'm reaching out to some places. But this is tough for me to ultimately make that transition for my mom. I'm her only son and that makes it very difficult when family is far away. Any suggestions would be appreciated as I'm very nervous and hope this doesn't give me an ulcer due to the intense stress that all this is placing on me emotionally. Thanks. Plus I need to get rid of these cats eventually. There is one that has grown or gotten real fat and is violent when I try to handle this cat.This cat has not had any vaccines in years so I dont want to be bitten. Any suggestions?